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Title: Global changes in mineral transporters in tetraploid switchgrasses (Panicum virgatum L.)

Journal Article · · Frontiers in Plant Science
 [1];  [2];  [3];  [3];  [3];  [3];  [4];  [5]
  1. US Department of Agriculture (USDA), Lincoln, NE (United States); University of Nebraska, Lincoln, NE (United States)
  2. US Department of Agriculture (USDA), Lincoln, NE (United States); LI-COR Biosciences, Lincoln, NE (United States)
  3. University of Nebraska, Lincoln, NE (United States)
  4. US Department of Agriculture (USDA), Albany, CA (United States)
  5. US Department of Agriculture (USDA), Lincoln, NE (United States)

Switchgrass (Panicum virgatum L) is perennial, C4 grass with great potential as a biofuel crop. An in-depth understanding of the mechanisms that control mineral uptake, distribution and remobilization will benefit sustainable production. Nutrients are mobilized from aerial portions to below-ground crowns and rhizomes as a natural accompaniment to above-ground senescence post seed-set. Mineral uptake and remobilization is dependent on transporters, however, little if any information is available about the specific transporters that are needed and how their relative expression changes over a growing season. Using well-defined classes of mineral transporters, we identified 520 genes belonging to 40 different transporter classes in the tetraploid switchgrass genome. Expression patterns were determined for many of these genes using publically available transcriptomic datasets obtained from both greenhouse and field grown plants. Certain transporters showed strong temporal patterns of expression in distinct developmental stages of the plant. Gene-expression was verified for selected transporters using qRT-PCR. By and large these analyses confirmed the developmental stage-specific expression of these genes. Mineral analyses indicated that K, Fe, Mg, Co, and As had a similar pattern of accumulation with apparent limited remobilization at the end of the growing season. These initial analyses will serve as a foundation for more detailed examination of the nutrient biology of switchgrass.

Research Organization:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); US Department of Agriculture (USDA)
Grant/Contract Number:
AI02-09ER64829; SC0001490
OSTI ID:
1628249
Journal Information:
Frontiers in Plant Science, Vol. 4; ISSN 1664-462X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English

References (67)

Arabidopsis IRT2 cooperates with the high-affinity iron uptake system to maintain iron homeostasis in root epidermal cells journal February 2009
Functional analysis and cell-specific expression of a phosphate transporter from tomato journal August 1998
Opportunities and roadblocks in utilizing forages and small grains for liquid fuels journal January 2008
Selection of optimal reference genes for gene expression studies in chronically hypoxic rat heart journal July 2019
The putative Arabidopsis zinc transporter ZTP29 is involved in the response to salt stress journal April 2010
Nutrient Uptake by ‘Alamo’ Switchgrass Used as an Energy Crop journal March 2009
Natural Variation for Nutrient Use and Remobilization Efficiencies in Switchgrass journal October 2009
Next-Generation Sequencing of Crown and Rhizome Transcriptome from an Upland, Tetraploid Switchgrass journal December 2011
The zinc homeostasis network of land plants journal September 2012
Chemical composition and response to dilute-acid pretreatment and enzymatic saccharification of alfalfa, reed canarygrass, and switchgrass journal October 2006
Long-term productivity of lowland and upland switchgrass cytotypes as affected by cutting frequency journal November 2008
Genotypic variability in mineral composition of switchgrass journal March 2009
Influence of inorganic salts on the primary pyrolysis products of cellulose journal June 2010
Molecular mechanisms of ammonium transport and accumulation in plants journal March 2007
K+ transport in plants: Physiology and molecular biology journal March 2009
Essential transition metal homeostasis in plants journal June 2009
Moving cationic minerals to edible tissues: potassium, magnesium, calcium journal June 2009
Moving micronutrients from the soil to the seeds: Genes and physiological processes from a biofortification perspective journal April 2011
Uptake, allocation and signaling of nitrate journal August 2012
Effects of Deficiency and Excess of Zinc on Morphophysiological Traits and Spatiotemporal Regulation of Zinc-Responsive Genes Reveal Incidence of Cross Talk between Micro- and Macronutrients journal May 2013
Maize yellow stripe1 encodes a membrane protein directly involved in Fe(III) uptake journal January 2001
A silicon transporter in rice journal March 2006
An efflux transporter of silicon in rice journal July 2007
NRT/PTR transporters are essential for translocation of glucosinolate defence compounds to seeds journal August 2012
Reference genome sequence of the model plant Setaria journal May 2012
Population-level deficit of homozygosity unveils CPSF3 as an intellectual disability syndrome gene journal February 2022
Characterizing the molecular regulation of inhibitory immune checkpoints with multimodal single-cell screens journal March 2021
The molecular analysis of leaf senescence - a genomics approach: Molecular analysis of plant senescence journal December 2002
A novel iron-regulated metal transporter from plants identified by functional expression in yeast. journal May 1996
Plant KT/KUP/HAK Potassium Transporters: Single Family - Multiple Functions journal January 2007
Metal movement within the plant: contribution of nicotianamine and yellow stripe 1-like transporters journal October 2008
High-affinity potassium and sodium transport systems in plants journal January 2006
From the soil to the seeds: the long journey of nitrate in plants journal December 2010
Rosette iron deficiency transcript and microRNA profiling reveals links between copper and iron homeostasis in Arabidopsis thaliana journal September 2012
Transport properties of members of the ZIP family in plants and their role in Zn and Mn homeostasis journal December 2012
Comprehensive Sequence and Whole-Life-Cycle Expression Profile Analysis of the Phosphate Transporter Gene Family in Rice journal November 2011
Phylogeny.fr: robust phylogenetic analysis for the non-specialist journal May 2008
Amplification efficiency: linking baseline and bias in the analysis of quantitative PCR data journal February 2009
Phytozome: a comparative platform for green plant genomics journal November 2011
A Putative Function for the Arabidopsis Fe–Phytosiderophore Transporter Homolog AtYSL2 in Fe and Zn Homeostasis journal May 2005
Characterization of Arabidopsis AtAMT2, a High-Affinity Ammonium Transporter of the Plasma Membrane journal December 2002
Phloem-Localizing Sulfate Transporter, Sultr1;3, Mediates Re-Distribution of Sulfur from Source to Sink Organs in Arabidopsis journal April 2003
Transcriptome Profiling of Sulfur-Responsive Genes in Arabidopsis Reveals Global Effects of Sulfur Nutrition on Multiple Metabolic Pathways   journal June 2003
Transcription Analysis of Arabidopsis Membrane Transporters and Hormone Pathways during Developmental and Induced Leaf Senescence journal April 2006
Mutations in Arabidopsis Yellow Stripe-Like1 and Yellow Stripe-Like3 Reveal Their Roles in Metal Ion Homeostasis and Loading of Metal Ions in Seeds journal June 2006
The Arabidopsis AtOPT3 Protein Functions in Metal Homeostasis and Movement of Iron to Developing Seeds journal December 2007
Arabidopsis Pht1;5 Mobilizes Phosphate between Source and Sink Organs and Influences the Interaction between Phosphate Homeostasis and Ethylene Signaling     journal May 2011
Arabidopsis NRT1.5 Is Another Essential Component in the Regulation of Nitrate Reallocation and Stress Tolerance   journal June 2012
A Transporter Regulating Silicon Distribution in Rice Shoots journal May 2008
The Arabidopsis Nitrate Transporter NRT1.7, Expressed in Phloem, Is Responsible for Source-to-Sink Remobilization of Nitrate journal September 2009
A Transporter at the Node Responsible for Intervascular Transfer of Silicon in Rice journal September 2009
The Arabidopsis Nitrate Transporter NRT2.4 Plays a Double Role in Roots and Shoots of Nitrogen-Starved Plants journal January 2012
The Arabidopsis YELLOW STRIPE LIKE4 and 6 Transporters Control Iron Release from the Chloroplast journal March 2013
Transcription factors regulating leaf senescence inArabidopsis thaliana journal September 2008
The expanded family of ammonium transporters in the perennial poplar plant journal January 2007
Whole‐plant mineral partitioning throughout the life cycle in Arabidopsis thaliana ecotypes Columbia, Landsberg erecta , Cape Verde Islands, and the mutant line ysl1ysl3 journal November 2007
Functional analysis of the Arabidopsis PHT4 family of intracellular phosphate transporters journal March 2008
Arabidopsis IRT3 is a zinc-regulated and plasma membrane localized zinc/iron transporter journal February 2009
Early transcriptomic changes induced by magnesium deficiency in Arabidopsis thaliana reveal the alteration of circadian clock gene expression in roots and the triggering of abscisic acid-responsive genes journal April 2010
Moving magnesium in plant cells journal April 2011
The Mitochondrial Phosphate Transporters Modulate Plant Responses to Salt Stress via Affecting ATP and Gibberellin Metabolism in Arabidopsis thaliana journal August 2012
Switchgrass Biomass Production in the Midwest USA journal January 2002
Transport of silicon from roots to panicles in plants journal January 2011
Phosphate import in plants: focus on the PHT1 transporters journal January 2011
Nitrogen Recycling and Flowering Time in Perennial Bioenergy Crops journal January 2013
Towards uncovering the roles of switchgrass peroxidases in plant processes journal January 2013
The Sorghum bicolor genome and the diversification of grasses text January 2009

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From soil to seed: micronutrient movement into and within the plant journal September 2014
From soil to seed: micronutrient movement into and within the plant book January 2014
Complete Chloroplast Genome Sequence of Broomcorn Millet (Panicum miliaceum L.) and Comparative Analysis with Other Panicoideae Species journal August 2018
Contrasting Metabolism in Perenniating Structures of Upland and Lowland Switchgrass Plants Late in the Growing Season journal August 2014
Proteomic Responses of Switchgrass and Prairie Cordgrass to Senescence journal March 2016
Genome Wide Identification of Orthologous ZIP Genes Associated with Zinc and Iron Translocation in Setaria italica journal May 2017